We divide 645688 by 17
We're looking to find how many times 17 goes into 645688.

Going ahead to step 1:
6 divided by 17 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 17

Going ahead to step 2:
17 can be fit into 64 3 times, resulting in a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 51 from 64, we get 13.
Include the next digit (5) from the dividend after 13, then repeat: 135 / 17

Advancing to step 3:
When dividing 135 by 17, we get 7 with a remainder of 16.
Put 7 as the next digit of the answer. 
Result so far: 37.0
The remainder is 16 after subtracting 119 from 135.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 17

Let's proceed to step 4:
When dividing 166 by 17, we get 9 with a remainder of 13.
The next digit of our result is 9. 
Result so far: 379.0
The remainder is 13 after subtracting 153 from 166.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 17

Let's proceed to step 5:
If we divide 138 by 17, we get 8 and a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 3798.0
Subtract 136 from 138 to get 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 17

Step 6:
28 divided by 17 is 1 with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 37981.0
Subtract 17 from 28 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
If we divide 110 by 17, we get 6 and a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 37981.6
The remainder is 8 after subtracting 102 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 8:
17 goes into 80 4 times with a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 37981.64
Subtract 68 from 80 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 9:
The number 17 fits into 120 7 times, leaving a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 37981.647
If we subtract 119 from 120, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 10:
When dividing 10 by 17, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 37981.647
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
The number 17 fits into 100 5 times, leaving a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 37981.64705
Subtract 85 from 100 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 12:
150 divided by 17 is 8 with a remainder of 14.
The next digit of our result is 8. 
Result so far: 37981.647058
Subtracting 136 from 150 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 13:
When dividing 140 by 17, we get 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 37981.6470588
The remainder is 4 after subtracting 136 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 37981.6470588 and a remainder of 4e-08.